Can I fill it and take it to test center and they update or anything else?

The test center can't do anything. Only ETS customer service can handle it. You should either call ETS, e-mail them, or mail back the ticket. Since time may be running out, I wouldn't mail it. Personally, I would call ETS and see if they could make the changes over the phone. Otherwise, I would e-mail them as discussed here:

Actually, you can even use the email Id provided on their site and mail your list to them. Just prepare a table similar to the one that is there on your correction stub. I did that and I got a confirmation in less than a week.